xref: /linux/Documentation/devicetree/bindings/mmc/davinci_mmc.txt (revision cf40a76e7d5874bb25f4404eecc58a2e033af885)
1*7b43da4cSManjunathappa, Prakash* TI Highspeed MMC host controller for DaVinci
2*7b43da4cSManjunathappa, Prakash
3*7b43da4cSManjunathappa, PrakashThe Highspeed MMC Host Controller on TI DaVinci family
4*7b43da4cSManjunathappa, Prakashprovides an interface for MMC, SD and SDIO types of memory cards.
5*7b43da4cSManjunathappa, Prakash
6*7b43da4cSManjunathappa, PrakashThis file documents the properties used by the davinci_mmc driver.
7*7b43da4cSManjunathappa, Prakash
8*7b43da4cSManjunathappa, PrakashRequired properties:
9*7b43da4cSManjunathappa, Prakash- compatible:
10*7b43da4cSManjunathappa, Prakash Should be "ti,da830-mmc": for da830, da850, dm365
11*7b43da4cSManjunathappa, Prakash Should be "ti,dm355-mmc": for dm355, dm644x
12*7b43da4cSManjunathappa, Prakash
13*7b43da4cSManjunathappa, PrakashOptional properties:
14*7b43da4cSManjunathappa, Prakash- bus-width: Number of data lines, can be <1>, <4>, or <8>, default <1>
15*7b43da4cSManjunathappa, Prakash- max-frequency: Maximum operating clock frequency, default 25MHz.
16*7b43da4cSManjunathappa, Prakash- dmas: List of DMA specifiers with the controller specific format
17*7b43da4cSManjunathappa, Prakash	as described in the generic DMA client binding. A tx and rx
18*7b43da4cSManjunathappa, Prakash	specifier is required.
19*7b43da4cSManjunathappa, Prakash- dma-names: RX and TX  DMA request names. These strings correspond
20*7b43da4cSManjunathappa, Prakash	1:1 with the DMA specifiers listed in dmas.
21*7b43da4cSManjunathappa, Prakash
22*7b43da4cSManjunathappa, PrakashExample:
23*7b43da4cSManjunathappa, Prakashmmc0: mmc@1c40000 {
24*7b43da4cSManjunathappa, Prakash	compatible = "ti,da830-mmc",
25*7b43da4cSManjunathappa, Prakash	reg = <0x40000 0x1000>;
26*7b43da4cSManjunathappa, Prakash	interrupts = <16>;
27*7b43da4cSManjunathappa, Prakash	bus-width = <4>;
28*7b43da4cSManjunathappa, Prakash	max-frequency = <50000000>;
29*7b43da4cSManjunathappa, Prakash	dmas = <&edma 16
30*7b43da4cSManjunathappa, Prakash		&edma 17>;
31*7b43da4cSManjunathappa, Prakash	dma-names = "rx", "tx";
32*7b43da4cSManjunathappa, Prakash};
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